In particular it recommends the development of a JSON-LD based format built around core concepts drawn jointly from ISO19156 Observations and Measurements and W3C Semantic Sensor Networks (SSN)/Sensor, Observation, Sample and Actuator (SOSA); the use of the Complex Property Model for semantically grounded property descriptions; OGC Sensor ML for the description of sensor instances and types; and INSPIRE Environmental Monitoring Facilities for describing sites and their monitoring capabilities.

For time series representation it recommends the use of observation collections (a SSN/SOSA extension) which also serve as a point of attachment for property/values shared by all observations in a collection.